The PC I had to fix is my nephew's old IBM ThinkCentre A51 8424 with Intel 915G onboard gfx card. Minecraft just stopped working from one day to the next and I spent two long, frustrating days trying to figure out why. I still haven't found out but at least I got it working again.

Here's what to do:

Exclude "Minecraft.exe" from DEP:

DEP stands for Data Execution Prevention. You might receive Minecraft OpenGL error on Windows 7, Windows Vista or Windows XP if DEP blocks the Minecraft.exe file. Add it to its exception list in order to repair your problem.

- Click Start, right click My Computer, select Advanced System Settings.
- In the new dialog, Advanced tab should be opened. Click Settings under Performance section.
- Click Data Execution Prevention tab in the new dialog.
- Select the following option:
- Turn on DEP for all programs and services except those I select
- Click Add, browse and select the following file:
- C:\Program Files\Minecraft\Minecraft.exe
- Add any other Executable Files (.exe) that could be located in the same directory.
- Click OK, OK.

Source and my most heartfelt thanks: blog.gameamplifier.com/2012/06/fix-minecraft-opengl-error.html (sorry I'm not allowed to post URLs as a new user, apparently.

NB: if this doesn't work for you, check out the site, they had more suggestions.

Hi there guys, Im getting the same message about my stupid Video card driver, Basically im running an ATI Graphics card and I have tried updating it, but im still not getting anything through It keeps coming up with the same message Someone please help as I love Minecraft and im desperate to play it